Which of the following seals should never be run when it is dry?
A. mechanical seal
B. O-ring
C. packing seal
D. radial lip seal
Answer: A
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The type of tow truck that would NOT be dispatched for an AWD (All Wheel Drive) vehicle would be which of the following?
A. Rollback B. Wheel lift style tow truck without a dolly C. Wheel lift style tow truck with a dolly D. Any of the above could be used for an AWD vehicle
The interval from two standard deviations below the mean to two standard deviations above the mean contains approximately ______% of the measurements.
Fill in the blank(s) with the appropriate word(s).
A clothes dryer neutral load on a feeder is calculated at ____%
A. 50 B. 60 C. 70 D. 80
Which of the following requires a double cheek cut at the ridge end?
A) Projection ridge B) End common rafter C) Hip jack D) Hip rafter